first PID is 0, separate idle to system

code/kernel/kmain.c

@@ -370,24 +370,6 @@ static PROCESS* KiLaunchUserProcess(const char* filePath, const char* args) {
     // Caller owns the reference returned by KeCreateProcess.
     return proc;
 }
-static void KiPrintProcessList() {
-    LIST_ENTRY* listHead = KeGetProcessList();
-    LIST_ENTRY* current;
-
-    DbgPrint("\nPID   | Name             | Threads | ExitCode\n");
-    DbgPrint("---------------------------------------------\n");
-
-    for (current = listHead->Fwd; current != listHead; current = current->Fwd) {
-        // Translate the list entry back to the PROCESS structure
-        PROCESS* proc = CONTAINING_RECORD(current, PROCESS, GlobalLink);
-
-        DbgPrint("%-5u | %-16s | %-7u | %d\n", 
-            proc->ProcessId, 
-            proc->Name, 
-            proc->ThreadCount, 
-            proc->ExitCode);
-    }
-}
 
 void SystemInitThread(void* arg) {
     SYSTEM_INIT_ARGS* args = (SYSTEM_INIT_ARGS*)arg;
@@ -487,6 +469,27 @@ uint64_t KeCatchAllDebugBucket(uint64_t a0, uint64_t a1, uint64_t a2, uint64_t a
         return status;
     }
 
+    if (a0 == 2) {
+        LIST_ENTRY* listHead = KeGetProcessList();
+        LIST_ENTRY* current;
+
+        DbgPrint("\nPID   | Name             | Threads | ExitCode\n");
+        DbgPrint("---------------------------------------------\n");
+
+        for (current = listHead->Fwd; current != listHead; current = current->Fwd) {
+            // Translate the list entry back to the PROCESS structure
+            PROCESS* proc = CONTAINING_RECORD(current, PROCESS, GlobalLink);
+
+            DbgPrint("%-5u | %-16s | %-7u | %d\n", 
+                proc->ProcessId, 
+                proc->Name, 
+                proc->ThreadCount, 
+                proc->ExitCode);
+        }
+
+        return STATUS_SUCCESS;
+    }
+
     DbgPrint("DebugBucket: unknown command %llu\n", a0);
     return STATUS_INVALID_PARAMETER;
 }